Removed unused authentication table view footer constant.
Removed unused authentication table view footer constant.

ropik/Atlas-Messenger-iOS,InterfaceInc/Atlas-Messenger-iOS,InterfaceInc/Atlas-Messenger-iOS,layerhq/Atlas-Messenger-iOS,ropik/Atlas-Messenger-iOS,Eynaliyev/Atlas-Messenger-iOS,layerhq/Atlas-Messenger-iOS,Eynaliyev/Atlas-Messenger-iOS,InterfaceInc/Atlas-Messenger-iOS